SEPA
United States Office of Air Quality EMR Ftennrt No
Environmental Protection Planning and Standards Julv 1981
Agency Research Triangle Park NC 27711
On-Shore Production of
Crude Oil and Natural Gas
Fugitive Volatile Organic
Compound Emission Sources
Emission Test Report
Texaco, Inc.
Paradis Plant
Paradis, Louisiana
Volume I
-------
DCN 81-222-018-04-30 EMB Report No. 80-OSP-7
EMISSION TEST REPORT
FUGITIVE VOC TESTING
AT THE
TEXACO PARADIS GAS PLANT
VOLUME I
Prepared by:
G. E. Harris
Radian Corporation
8501 Mo-Pac Boulevard
Austin, Texas 78759
Prepared for:
Winton Kelly
U.S. Environmental Protection Agency
ESED/EMB (MD-13)
Research Triangle Park, NC 27711
EPA Contract No. 68-02-3542
Work Assignment No. 4
July 1981
-------
CONTENTS - VOLUME I
Section " Page
1 INTRODUCTION 1
2 SUMMARY OF RESULTS 2
3 PROCESS DESCRIPTION 24
4 METHODOLOGY 27
5 SAMPLING LOCATIONS 32
APPENDICES
A-l Coding Conventions
A-2 Summary of Sampling Data
A-3 Summary of QA/QC Data
ii
-------
SECTION 1
INTRODUCTION
This report presents the results of testing for fugitive VOC (Volatile
Organic Compounds) emissions at the Texaco Paradis gas plant, Paradis,
Louisiana. The testing was performed by Radian Corporation on February 9
through February 27, 1981. This work was funded and administered by the
Emission Measurement Branch of the U. S. Environmental Protection Agency.
The purpose of this testing was to develop data to be used in support of
New Source Performance Standards for onshore production facilities.
The specific objectives of the test program were to:
1) conduct a screening survey using a portable analyzer to
obtain equipment type inventories and leak frequency,
2) collect process information for each source including
service, composition in the line, seal orientation,
elevation, and accessibility,
3) conduct a limited parallel screening survey using a
soap scoring procedure for comparison to portable hydro-
carbon analyzer screening results, and
4) perform emission measurements on selected sources that
exhibit inconsistent results between portable analyzer
screening and soap scoring, and for those source types
where previous data are limited.
The following sections present a summary of results, a description
of the process configuration, the testing methodology, and the sampling
locations. A full listing of the data and other supplemental information
are included in the appendices.
-------
SECTION 2
SUMMARY OF RESULTS
This section presents a summary of the fugitive emission data gathered
at the Texaco Paradis gas plant. All data are presented in the appendices.
Appendix A includes a more detailed listing of the mass emission sampling
data, as well as an explanation of all coding conventions used on the field
data sheets. Appendix B includes copies of the field data sheets.
The gas plant screening results are presented in Tables 2-1 and 2-2.
Table 2-1 presents the distribution of VOC concentration readings for each
source type, while Table 2-2 presents similar information for soap scores.
These tables also give the population results by source type.
The results of the baggable sampling are presented in Table 2-3. The
mass emission rates are presented in kilograms per day for each source type
in terms of both methane and nonmethane hydrocarbons. The sources were
rescreened both before and after sampling. The mean value of the rescreening
is also presented in Table 2-3 for both the OVA and soap scoring. The
original screening value is presented along with screening values taken
immediately before and after sampling in Table 2-4. These data also present
paired values for VOC concentrations and soap scores so that a comparison
of the two survey methods can be made.
It should be noted that the source type called flanges actually
includes a variety of pipe—to—pipe connections including threaded fittings,
unions, and compression-type tubing fittings. Welded joints were not in-
cluded in this survey. The "other" category represents a group of sources
that were too few in number to warrant separate listing. Included in the
"other" category were sight glasses, vacuum breakers, meters, pig traps,
control valve diaphragm vents, and thermowells.
-------
TABLE 2-1. SUMMARY OF RESULTS
VOC CONCENTRATION OCCURRENCE DISTRIBUTION
TEXACO PARADIS PLANT
OVA
Screening
Value (PPMV)
0 to 199
200 to 9,999
> - 10,000
Total Sources
Screened
Sources Not
Screened
TOTAL SOUPCF5
Flanges
II %
692 90.1
48 6.3
28 3.6
768 19.7
3127* 80.3
3895*
Process
Drains
t X
13 46.4
9 32.1
6 21.4
28 100.0
0 0.0
28
Open
Ended Lines
0 X
370 78.4
47 10.0
55 11.7
472 93.7
32 6.3
504
Source Type
Relief
Valves Valves
* X II X
39 65.0 1341 74.3
18 30.0 245 13.6
3 5.0 218 12.1
60 77.9 1804 86.3
17 22.1 286 13.7
77 2090
Pump
Seals Compressors
J
18
16
17
51
0
51
X II X
35.3 11 36.7
'31.4 5 16.7
33.3 14 46.7
100.0 30 100.0
0.0 0 0.0
30
Other
II %
16 76.2
4 19.0
1 4.8
21 84.0
4 16.0
25
u>
// - Number of sources
% - Percent of total sources screened
* Estimated value - every fifth flange was surveyed
-------
TABLE 2-2. SUMMARY OF RESULTS
SOAP SCORING OCCURRENCE DISTRIBUTION
TEXACO PARADIS PLANT
Source Type
Process Open Relief Pump
Soup Flanges Drains Kndcd Lines Valves Valves Seals
Score fZfXfXfZfZIX
0 470 94.6 15 100.0 286 95.0 0 -- 995 91.5 0
1 8 1.6 0 0.0 3 1.0 0 -- 27 2.5 0
2 10 2.0 0 0.0 8 2.7 0 — 32 2.9 0
3 5 1.0 0 0.0 2 0.7 0 — 18 1.7 0
4 It 0.8 0 0.0 2 0.7 0 — 16 1.5 0
Total Sources
Soaped 497 12.8 15 53.6 301 59.7 0 0.0 1088 52.1 0 0.0
Sources Not
Soaped 3398* 87.2 13 46.4 203 40.3 77 100.0 1002 47.9 51 100.0
TOTAL
SOURCES 3895* 28 504 77 2090 51
Compressors
i %
0
0
0
0
0
0 0.0
30 100.0
30
Other
II Z
4 100.0
0 0.0
0 0.0
0 0.0
0 0.0
4 16.0
21 84.0
25
// - Number of aourcea
% - percent of total sources soaped
* Estimated value - every fifth flange was surveyed
-------
No attempt has been made to summarize the process data collected.
All of these data are contained in the field data sheets in Appendix B.
This information will be used in structuring emission factor categories in
a report covering all available gas plant fugitive emission data.
-------
TABLE 2-3
SUMMARY OF RESULTS:
MASS EMISSIONS DATA
TEXACO' PARADIS PLANT
aoi/'Ct. SOURCE
m't. ID
W\LVE,S 291
360
381
lib
122
170
HlH
HI*
5H3
55H
62 /
69H
700
703
711
ft AM OVA
SCREENING
VALUE
100001
I3b0
100001
65001
100001
2500
100001
5bOO
2050
10 DO
2HOO
IbBOO
11000
32bO
310U
MEAN SOAP
SCREENING
VALl.lt-
3.0
0*0
2.0
3.0
3.0
0.5
3.5
1.0
1.5
0.5
0.5
0.0
0.0
0.0
o.o
NONMETHANE
LFAK RATES
(KG/DAY)
0.0300H
0.00009
0.00009
0,00577
0.008HH
0.00067
n. 00107
0, 00026
(1.0020H
0,00096
0.011H1
O.OH982
0.41798
0.03101
0.01029
TOTAL HC
LEAK KATES
(KG/UAY)
0.11036
O.OOU09
0.0153H
0,05970
0.09907
0,01t>75
0.07333
0.00128
O.OOH36
0.0018^
0.011H1
0.05U17
0.31^97
0.03101
0.01U29
-------
TABLE 2-3 (Continued)
SOIHCL SOURCE
TYIJt- 10
V/.I.VLS 1091
109*
1101
i?y
1.95t>
1959
2031
203^
2223
222^
2236
2P-11
2290
2292
2304
ntAr. OVA
SCREENING
VALUE
q2500
5000
7000
2&00
1600
i5
100001
2.600
100001
9500
33bO
b3bO
11000
1 0 0 0 f) 1
16.500
MEAf,' SUAP
SCREENING
VALUt.
1.5
1.0
1.0
0.5
2.0
0,0
3.0
1.5
3,0
1.5
1.0
2.0
2.0
3.0
1.5
NONMETHANE
LEAK MAILS
(KG/DAY)
0,00997
0.11121
0.22209
0,00017
0.00077
O.OOlOl
0,17307
0.01033
0,27129
0.0372H
0,01000
0.00880
0, 15011
n. 52186
0.02056
TOTAL HC
LEAK NATES
(KG/UAY)
0.01U06
0.11132
0,22fcl27
0.00^^1
0,00077
0.00101
0.17H6
0.01U12
0.27662
0,03/28
0.01U08
o.oooao
0,15018
0,S2iib1
0.02073
-------
TABLE 2-3. (Continued)
co
ML AN OVA
•;°"KCL SOURCE SCRFL'NTNG.
TYt'L IU WLUE
VA| VES 230H 16000
2316 6HO
?3j* 7000
2'»tfi! 1550
2<4'fH 100001
2H5H 22000
2H5& 700
ON6 2000
857 3100
1332 1350
1790 55501
1797 1050
J'462 100001
2'I83 50001
?193 21000
HEAN SUAP
SCREENING
VAUL'L
2.0
1.5
1.5
1.5
2.0
2.0
0.0
0.0
0.0
0.0
2.0
0.0
3.0
2.0
2.0
NoNMETHANL
LTAK RATES
» KG/DAY)
0.02192
O.OOH13
0.02057
0,05371
0.00297
o.oooou
n. ooooo
0,03156
n.05QB«
0,03332
n. 00905
0,00960
0.53376
0.02t'*3
0.05059
TOT"L HC
LEAK KATES
(KG/UAY)
0.02192
O.OOH21
0.02*16
0,65*10
0.00^05
0.00016
0.00000
0.03156
0.05000
0.03532
0,00*05
0,00*60
0.53^27
0.02^3
0,05059
-------
TABLE 2-3. (Continued)
sUlUvCL SOURCr
TYI't. ID
VALUES 2516
?52U
2543
254 1
254^
2550
2552
2573
?578
?593
002
013
?06b
21?-b
?149
MEAN OVA
SCREENING
VALUE
100001
100001
100001
95001
60001
65001
1050
56501
B2SO
3bO
2900
3750
100001
75001
1 0 0 0 0 1
HEAIM S°AP
SCREENING
VALlJL
2.5
1.5
2.0
0.0
0.0
o.o
0.0
2.0
1.0
0.0
0.0
0.0
2.0
3.0
2.0
MONMETHANL
UFAK RAILS
(KG/DAY)
0.27460
0.02006
0.19529
n, 12040
0.04647
0,27038
0.09748
0.10771
0.06428
0.00218
0.07539
0.04540
0.23602
2.1191&
0.19461
TOTA1- ML
LEAK KATES
(KG/UAY)
0.27H60
0.02»06
0.19^29
0.12U40
0.04^47
0.27U3B
0.09/48
0.10/71
0.06426
0.00218
0,07b75
0.04b90
0.23t>24
2.11^15
0.19H61
-------
TABLE 2-3. (Continued)
<;lll.n
-------
TABLE 2-3. (Continued)
sOiiKCL SOURCE
' m'L ID
PLT'iF' 3LAL.y 330
339
34U
311
314
317
3?9
33U
332
334
342
343
344
343
316
|MEA|v OVA MEAN SUAP
SCREENING SCREENING
VALUE VALUE
100001 ,
100001 .
100001
100001
5100
130
50051 .
500 ,
500 ,
110 ,
. *
, »
. . •
. .
. .
NONMEyHANE
LEAK RATES
(KG/DAY)
1 .24192
0.15439
1.39607
1.39607
0,01634
0.01155
1.49520
n. 15751
0.03153
0.20298
0.24821
0.21821
6. 69083
12.120
6. 20761
TOTAL HC
LEAK KATES
(KG/DAY)
1,51/91 -
0.1i|f76
1.77B77
1.77b77
0, 27=>36
O.OH55
1.53251
0,16/20
0.03178
0.20^25
0.25318
0.25318
8.93153
12.7/23
6,3/965
-------
TABLE 2-3. (Continued)
KtHiKCt. SOURCE
" r>pE ID
PUMP SEAL* 347
jl
340
349
351
323
324
32«
333
33^
HE/\r' OVA
SCRt tNING
vALUfl
27500
0
141)00
bUO
625
bO
100001
]5bO
bbOO
MEAN SUAP MoNMtTHANt
SCREEMIN6 LEAK RAILS
VALUE (KG/DAY)
0.^7415
0.00000
0.00434
0.00103
. 0.54620
0. 0334«
13.2917
0.1^619
U. 37097
KM »u ni-
LEAK KATES
(KG/UAY)
0.27415
0,00000
0.00434
0.00103
0.54b69
0.03^98
13.4765
O.l4bl9
0.37«i74
-------
TABLE 2-3. (Continued)
SOUKLE. SOUPCf
lYI't ID
Rf-l, IL'F VAU/FS 980
1
VALVES iO(*y
] O&b
COf'PRirSSUKti 956
95?
950
95*
95H
961
96A
96t)
9f,b
96 /
97^
ME./\r-! OVA
SCRFLNING.
V/AL.UF.
35000
100001
tiOUO
27500
100001
7bOO
100001
•
IfebOO
100001
0
0
•
1 0 0 0 0 1
MEAN SOAP MnNMETHANE
bCRFENlNG LFAK RATtS
VALUE (KG/UAY)
. 0.02317
H.O 1.38286
0.0 0.55660
0.2662^
0.62870
0.^1556
0.^1162
0,25470
0.079MU
0.00737
. 0.0001H
0.00522
0,00031
0,32130
TOTAL HC
LEAK KATES
(KG/UAY)
0.39317
1.H0120
0,55«b9
2. 36611
5,89bl8
1.32294
25,2/09
H.i(7id86
0,56185
Il.tHSe
O.OOOHH
0,03008
0.00670
1.12«iHH
-------
TABLE 2-3. (Continued)
OVA MEAN SOAP r]nNI")ETHANE TOTAL HC
SOllKCt.
jrcL
COrPltLSSOKS
SOURCE
ID
974
i
975
97*>
SCrU LNING
VALUE:
100C01
5£00i
100001
SCREENING
VALUL
•
•
•
UFAK RATES LEAK HATES
(KG/DAY) (KG/UAY)
0.000'fb 0.01^92
0,t>7770 1.H14J08
0.2031b 9. 02^66
977 100001 . !
0.08897
-------
TABLt g-4
KEsCREENING DATA SUMMARY
TEXACO. PAKADIS
ORIGINAL SCREENING VALUE
************************
SOURCE: TYPt- ID AIMALYZEK SOAP
****•+• ******* ***** + *++** **** *********** ***********
MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAH
******** ********
I'UESSURF
UEVJLES 982
VALVES
982
988
994
116
122
170
179
256
291
294
6BQ
369
381
414
415
100001
SOQO
500
100001
10000
1 0 'J 0 0 1
0
10001
100001
100001
1000
100001
700U
20000
0
"
-
3
4
3
1
2
3
4
0
4
3
0
3
lOOOOl
350UQ
0
lOUOOl
1000U1
40UO
15UO
lOOUQ
1 0 U 0 U i
1 0 U 0 U i
700
100001
lOOOOl
lOOOOl
10UQ
-
-
3
3
0
1
2
-
4
«*
4
-
3
1
•
t
t
70QOO
lOOOOl
1000
350U
26000
lOOOOl
lOOOOl
2000
lOOOOl
lOOOOl
lOOOOl
10000
-
-
3
3
1
0
2
3
4
0
4
2
4
1
-------
TABLE: 2-4
HLSCKtENiNG UATA SUMMARY
TEXACOi PAKADIS
OKIGIMAU SCKLENING VALUE
SOURCE: rypt- ID ANALYZER SOAP
: +****•«:***** *********** * * * * *********** ***********
BEFOHL MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAP
******** ********
vALVFS
479
543
554
627
694
700
703
711
778
-------
FABLE: 2-4
KESCKEENING UAl'A SUMMARY
TEXACO, PARADIS
ORIGINAL SCREENING VALUE
SOURCE TYF't- ID ANALYZER SOAP
. ********************** * * * * *********** ***********
tJEFORt MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAP
******** ********
VALVRS
1091
1092
1101
1332
1790
179?
1956
19Sg
1962
1963
2031
2033
*Gfc5
*12.5
21M9
90000
1000
70000
1000
12000
200
2200
70
100001
100001
100001
2500
10000
1^000
lUOOU
0
2
0
0
-
—
-
_
«•
_
-
0
0
3
1
780UQ
yuuo
»
15UO
lOUOUl
&uo
16UO
70
1000U1
lOUOUl
lOUOUl
iJ7UQ
lOUOUl
lOUOUl
1000U1
2
1
-
0
2
0
2
0
3
3
3
2
2
3
2
700U
loou
7000
1200
11000
1500
1600
0
100001
100001
100001
250U
100001
50000
100001
1
1
1
0
2
0
2
0
3
3
3
1
2
3
2
-------
TABLE 2-4
RESCKEENiNG UATA SUMMARY
TEXACO, PAKADIS
ORIGINAL SCREENING VALUE
SOURCE TYPE 10 ANALyzEK SOAP
********************** * * * * *********** ***********
HEFURL MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAP
******** ********
00
2173
2223
2229
2236
2241
2290
2292
2303
2304
«16
2317
2319
2442
2444
2454
30000 ?.
100001 3
10000 l
3500 1
lOOOOl 2
12000
lOOOOl 4
70000
100001
1900
3000
100001
100001 4
7000 2
1100 0
lUOUQ
1000U1
1200Q
35UO
7UO
120UQ
lOOOOl
25000
700Q
11UO
20UO
7000
2600
lOUOOi
t
2
3
2
1
2
2
3
2
2
2
1
2
1
3
_
15000
lOOOOl
700U
3200
lOQOO
1000U
i o o o n i
8000
2500U
iao
180U
7001)
500
lOOOOl
22000
2
3
1
1
2
2
3
1
2
1
'
1
2
1
2
-------
TABLE ?-4
RESCKEENING DATA SUMMARY
TEXACO, PAKADIS
ORIGINAL SCREENING VALUL
************************
SOURCE lYPt- ID ANALYZER SOAP
* * * * ******* ************ * * * * *********** ***********
BEFORE MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAP
******** ********
245f,
246,2
2483
2493
2494
250l
2bOfi
250g
2bl6
2520
25M3
2547
254g
2550
2552
1000 1
100001 «*
70COO
4500
100001
100001
100C01
100001
100001
100001
loOooi
35000
12000
i n o o o i
i e o n
t
10UUU1
lOUOUl
12000
10UOU1
lOUOUl
10UOU1
420UQ
lOUOUl
lOUOUl
lOUOOl
9UOUQ
lOUOUl
lOUOUl
20UO
-
3
2
2
6
3
3
2
2
2
2
0
0
0
0
700
100001
60000
30000
100001
100001
100001
10000
100001
100001
1 0 0 0 0 1
100001
2000U
30000
100
0
3
2
2
3
3
3
2
3
1
2
0
0
0
0
-------
TABLL 2-4
RLSCKEEN1NG DATA SUMMARY
TEXACO. PAKADIS
OKIGIMAL SCREENING VALUE
************************
SOURCE TYPL ID ANALYZFK SOAP
* + *********:»***+* * * * * *********** ***********
BEFORE MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZt-R SOAP
******** ********
VALVFS
PUMP SEALS
2573
2578
2593
2779
2791
2857
2952
311
314
317
323
324
326
329
530
100C01
10000
300
100001
louool
100C01
300
1000
7000
30
300
70
400D
100001
1500
17000 2
1UOUO 1
5UO 0
100001 3
100001 4
lOUOOl 2
7UO 0
19UO
5000
t -
7UO
20
10UOU1
1UO
0
100001
6500
200
100001
100001
100001
•
•
b20U
130
950
80
100001
100001
1000
2
1
0
3
3
2
-
-
-
-
w
-
-
-
-
-------
TABLL 2-1
RESCKEEN1NG DATA SUMMARY
TEXACO. PAKADIS
ORIGINAL SCREENING VALUE
************************
SOURCE: TYPE- ID ANALYZER SOAP
+****************+***** **** *********** ***********
BEFORL MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTER MEASUREMENT
*****************
ANALYZER SOAP
******** ********
PUMP SEALS
332
333
334
335
33?
338
339
340
341
342
343
344
345
346
347
10000
1000
inoooi
100
100001
100001
100001
100001
1 0 U 0 0 1
2000
2000
70000
inoooi
5uonn
3000
5UQ
2UO
130
30UQ
10UOU1
lOUOUl
10UOU1
100001
10UOU1
1 ""
* •*
* '
• "•
• "
3UOUQ
•
250U
90
10000
lOOOOl
100001
lOOOOl
lOOOOl
lOOOOl
•
t
*
*
•
2500U
-------
TABLE 2-4
RESCKEENiNG L>ATA SUMMARY
TEXACOi PARADIS
ORIGINAL SCREENING VALUE
************************
SOURCE TYPt- ID AfMALyzCR SOAP
*********************** **** *********** ***********
HEFURt MEASUREMENT
******************
ANALYSER SOAP
******** ********
AFTLR MEASUREMENT
*****************
ANALYZER SOAP
******** ********
PUMP SLALS
COMPRESSOR
S3
S3
348
349
350
351
952
95i*
956
95?
958
959
960
961
962
963
964
o
20000
200
20000
100001
0
10000
inoooi
lOOooi
1500
4 0 (1
40000
500
100001
20000
0
7000
0
0
10UOU1
• **
150UQ
1QOOU1
1UOUO
11UO
5UQ
15000
1200
lOOOOl
6UOOO
0
I
2200U
6000
100U
lOOOOl
*
40000
lOOOOl
5000
nou
610
2000U
650
lOOOOl
•
-------
TABLE 2-H
DATA SUMMARY
TEXACOi PAKADIS
ORIGINAL SCREENING VALUt.
************************
SOURCE TYPt- 10 ANALYZEK SOAP
. **************** *+.**** * * * * *********** ***********
bt-FURL ME'ASUREMFNT
******************
ANALYSER SOAP
******** ********
AFTtR MLASUREMLNT
*****************
ANALYZtH SOAP
*^,****** ********
COMPRESSOR SEALS
965
966
967
973
974
975
976
977
970
979
30000
15000
0
70000
50000
10001
100001
3 0 0 0 0
300
500
0
0
• "*
lououi
10UQU1
12000
10UOU1
1QUOU1
B50
1100
0
0
t
1 0 0 0 0 1
100001
100001
100001
100001
*
2000
-------
SECTION 3
PROCESS DESCRIPTION
The Texaco Paradis gas plant removes natural gas liquids by the prin-
ciple of refrigerated oil absorption. The complex includes three absorption
systems, each with multiple absorbers, which treat gas for sales to intra-
state markets, interstate markets, and United Gas Company. Natural gas
liquids removed by these absorption systems are combined and separated into
products by a single train fractionation system.
The largest of the three absorption systems, the intrastate system, was
chosen for testing along with the fractionation train. The intrastate system
was treating 450 MMSCFD (million standard cubic feet per day) during the
testing period, which was near the rated capacity of 500 MMSCFD. The total
capacity of all three absorption systems was 800 MMSCFD.
A simplified schematic diagram of the intrastate absorption system and
the fractionation train is shown as Figure 3-1. The feed gas is cooled by
heat exchange, routed to the bottom of the absorber, and contacted with
chilled lean oil. The treated gas is removed from the absorber overhead,
warmed through heat exchange, and routed to sales. The rich oil (lean oil
plus absorbed natural gas liquids) is heated and routed to the demethanizer.
The demethanizer overhead is split between local fuel and a recycle to the
raw gas inlet. The rich oil is then stripped of all absorbed liquids in the
rich oil still, cooled, and returned to the absorbers.
The natural gas liquids coming from the rich oil still overhead are
cooled and routed to deethanizer feed. Each column removes one light product
(ethane, propane, isobutane, and normal butane) and routes the heavier
24
-------
NJ
Ui
RAW,
GAS
KNOCK
OUT J.
SALES
GAS
i pe •
FREON
REFRIGERANT
n-BUTANE
ETHANETO
AMINETREATERS
RICH
OIL
ISOBUTANE
PROPANETO
MOLECULAR SIEVES
COOLING
WATER
FREON
REFRIGERANT
DEBUTANIZER
(DOWN DURING
TESTING)
DEISOBUTANIZER
DB GASOLINE
DEPROPANIZER
(DI
DEETHANIZER
SURGE DRUM
7021781
Figure 3-1. Schematic flow diagram for the Texaco Paradis gas plant.
-------
materials to the next column. The bottom product from the last column is
debutanized natural gasoline.
26
-------
SECTION 4
METHODOLOGY
The fugitive emissions testing at the Texaco Paradis gas plant included
both "screening" and "bagging" operations. Screening is a generic term
covering any quick portable method of detecting fugitive emissions. Both
instrumental screening (using the Century Systems OVA-108) and soap scoring
were used in parallel on this task. Bagging refers to a quantitative emission
measurement achieved by enclosing the source in a Mylar® shroud and analyzing
an equilibrium flow of air through the enclosure.
The instrumental screening was done according to the procedures speci-
fied in EPA proposed Method 21. Method 21 only requires the exact concen-
tration to be recorded if it is over the leak definition specified in the
applicable standard, but since this effort was more oriented to regulatory
support than to regulatory monitoring, the maximum screening value was
recorded for all sources.
The soap scoring method was modeled after a method used in screening
fugitive emissions from petroleum production facilities. The soap solution
was prepared from 100 ml. of rug shampoo (HR Professional Formula) mixed with
a gallon of either distilled water or a mixture of distilled water and
ethylene glycol. The solution was applied using a common garden sprayer.
federal Register, Vol. 46 No. 2, Monday, Jan. 5, 1981, p. 1160.
2Eaton, W. S., et al. "Fugitive Hydrocarbon Emissions from Petroleum
Production Operations." API Publication No. 4322, American Petroleum
Institute (1980).
27
-------
Each source was sprayed with soap solution, being sure to coat all
areas of potential leakage. A careful inspection was then conducted to
detect any bubble formation. A soap score was then assigned based on the
estimated bubble volume generated in a six-second observation:
Soap Score Estimated Bubble Volume
0 No detectable bubbles
1 0 to 1 cc/6 sec.
2 1 to 10 cc/6 sec.
3 10 to 100 cc/6 sec.
4 >100 cc/6 sec.
The screening methods outlined above were used on every accessible
source except for flanges. Only 20 percent of the flanges were screened
because of their large population. Sources screened included valves, flanges,
pumps, compressors, open-ended lines, drains, relief valves, and many other
miscellaneous sources. The survey was conducted on a line-by—line basis to
minimize the time required to obtain process data, such as the composition
and phase of the material in the line. A few sources were not screened due
to either physical inaccessibility or safety problems which prevented close
approach, but these sources were recorded on the data sheets to insure that
a complete source inventory was obtained.
Bagging procedures were carried out according to methods developed in
previous refinery testing. The leaking area of the source was completely
enclosed in a shroud of Mylar® plastic to contain any emissions. A flow of
dilution air was induced through the enclosure by the sampling train shown in
Figure 4-1. The enclosure seal and the flow rate were varied to achieve a
3Radian Corporation. "The Assessment of Atmospheric Emissions from
Petroleum Refining, Volume 2, Appendix A," EPA Report No. &00/2-80-75b,
EPA/IERL/RTP, July, 1980.
28
-------
MAGNEHELIC
N5
VO
THIS LINE SHOULD
DE AS SHORT
AS POSSIBLE
TEMT
COLDTRAP
(ICE BATH)
LEAKING
VALVE
TRAP
DRY GAS
METER
SMALL
DIAPHRAGM
PUMP
FILTER VACUUM PUMP
SAMPLE BAG
TWO WAY VALVE
Figure 4-1. Sampling Train for Baggable Source of Hydrocarbon
Emissions Using a Diaphragm Sampling Pump
-------
slight, but measurable, vacuum on the tent to insure that all emissions were
contained. A cold trap was provided to collect any heavier components which
might condense in the downstream lines. The flow rate was measured with a
dry gas meter, at which both temperature and pressure were measured to allow
a conversion to standard conditions. The discharge of the vacuum pump was
monitored with an OVA to determine when steady-state conditions had been
established. At that point, a Tedlar® sampling bag was filled from the dis-
charge of the small Teflon® lined diaphragm pump. The sample bag was then
analyzed for methane and total non-methane hydrocarbons on a Byron THC
analyzer (GC/FID with backflush after methane) . The THC was calibrated daily
with a mixture of 728 ppmw propane and 263 ppmw methane in zero air.
Noncondensible mass emissions from the source were then calculated from
the bagging data by the following equations:
= Kl DF (P - AP) M (CT - CA) 1
460 + T
where E = noncondensible hydrocarbon emission rate in kg/day,
KI = 2.99 x 10 5 (a conversion constant)*
D = dry gas meter (DGM) correction factor,
F = flow rate in actual cubic feet per minute,
P = barometric pressure in inches of mercury,
AP = differential pressure at the DGM in inches of mercury,
M = molecular weight of the measured gas ,
C = hydrocarbon concentration in the sample in
C. = ambient hydrocarbon concentration in ppmw,
A
T = temperature at the DGM in °F.
The molecular weight (M) was calculated:
- CT
86 29
*The field data were taken in English units. This factor includes appropriate
metric conversions as well as an adjustment to standard conditions of 60°F
and 29.92 inches of mercury pressure.
-------
The emission rates for either the methane or the non-methane fractions can be
calculated by the above equations by using the appropriate value of methane
or non-methane concentration for C in equation (1). If any organic condensate
was collected in the cold trap, its contribution to the emissions was calculated
by:
Z (3)
where IL = condensible emissions kg/day,
SG = specific gravity of the condensate (used 0.75g/ml. if there was
too little to measure the specific gravity) ,
V = volume of condensate collected in mis,
t = time of collection in minutes.
1.44 = units conversion constant, from g/min. to kg/ day.
The total hydrocarbon emissions would then be:
ET = EGM + EGNM + EL (4)
where E = total hydrocarbon emissions in kg/day,
E = methane emissions in kg/day,
„_. = non-methane hydrocarbon emis;
EL = condensible hydrocarbon emissions in kg/day.
E = non-methane hydrocarbon emissions in kg/day,
31
-------
SECTION 5
SAMPLING LOCATIONS
The Texaco Paradis gas plant is a large and complex gas processing
facility. It would have been impossible to conduct a complete fugitive emis-
sion survey of such a large plant within the existing time and cost constraints,
This section will explain what portions of the plant were screened and sampled.
As mentioned in Section 3, the'Paradis plant includes three independent
absorption systems followed by a single natural gas liquids fractionation
system. The bulk of the testing reported here was performed on the "intra-
state" absorption system and the fractionation train. The intrastate system
was chosen for testing because it was the largest system, and it most closely
balanced the size of the fractionation train.
The intrastate absorption system itself was still too large for com-
plete screening, so the screening survey was limited to one of three parallel
absorbers which made up the intrastate system. No screening was done on the
Freon refrigeration system. Complete screening (except only 20 percent of
flanges) was performed on the one absorber, the lean oil system, and the
fractionation train. The screening survey also excluded the ethane amine
treaters and the propane molecular sieves. Although the debutanizer was not
running during the test period, it was screened since it was filled with
product and under pressure.
Instrumental screening was performed on all the sections described
above. Soap scoring was conducted in parallel to the original screening for
the first nine days of testing. When it became necessary to start simultan-
eous bagging and screening, there was insufficient manpower to do soap scoring
on the original screening survey. Soap scores were still taken during
32
-------
rescreening on all sources which were bagged. This resulted in soap scores
being taken for about half of the sources screened (mostly in the absorption
and lean oil systems) and all of the sources bagged (except where soap scoring
was physically inappropriate, such as on moving seals or large open-ended
lines).
The objectives of the bagging effort were to concentrate on those
sources where existing data were scarce or where there was an inconsistency
between the instrumental screening results and the soap scoring. This re-
sulted in the following priority for source sampling:
1) compressor seals,
2) relief valves,
3) pump seals,
4) sources with inconsistent screening values, and
5) valves.
No sampling was done on flanges or open-ended lines since the existing data
base covered them adequately.
There were no compressors associated with the intrastate absorption
system because it was fed by relatively high pressure gas fields. A large
number of reciprocating compressors were available on another system, so
16 of these sources were sampled to increase the compressor data base.
Despite a high priority, only one relief valve was sampled. This was
due to either physical inaccessibility, venting to a flare header, or a
remote location with no utilities to operate the sampling train.
A total of 17 pump seals were sampled. This included all pumps
found to be leaking in the original screening survey.
33
-------
The remainder of the sources sampled were valves in the absorption
and fractionation system screened. These sources were selected either be-
cause of screening inconsistencies (about 20 valves) or to fill out a matrix
to provide a range of data with which to develop screening value to leak rate
correlations (about 56 valves).
34
-------
APPENDIX A
SUPPLEMENTAL INFORMATION
A-l - Coding Conventions
A-2 - Summary of Sampling Data
A-3 - Summary of QA/QC Data
-------
A-l
CODING CONVENTIONS
-------
TABLE A-l. DATA CODING CONVENTIONS
Columns Coding
1,2 Month (i.e., May = 05, October = 10)
3,4 Day of the month
5,6 Year (19 B. Q) •
7,8 A sequential identification number assigned to each plant.
9,10 An identification number for each process unit encountered.
For example:
let 01 = Gas Plant - Adsorption
02 = Gas Plant - Cryogenic
etc.
11,12,13 A unique identification number assigned to each screening
team. Each team member is assigned a personal ID number
between 0 and 9. Column 11 will then contain the ID for the
soap score reader, column 12 will be the OVA operator, and
column 13 will be the data recorder.
14,15 A sequential ID number assigned to each instrument used.
Outside documentation should then include:
Instrument 1 = OVA #2158
Instrument 2 = OVA #1575
etc.
16-21 A sequential ID number for each source encountered. Start
back at No.-l for each new plant.
22 - 28 The instrument screening value in ppmv.
29,30 Source Type Code
Source Code
Flange 1
Process drain 2
Open-end line 3
Agitator seal 4
Relief valve 5
-------
TABLE A-l. DATA CODING CONVENTIONS (continued)
Columns
Coding
29,30 (cont'd)
Valves
On-line
Pump
Seals
Source Code
* Block valve - gate type 10
Block valve - globe type 11
Block valve - plug type ' 12
Block valve - ball type 13
Block valve - butterfly type 14
Block valve - other types 15*
Control valve - gate type 20
Control valve - globe type 21
Control valve - plug type 22
Control valve - ball type 23
Control valve - butterfly type 24
Control valve - other types 25*
Single, mechanical, emission point at seal 30
Single, mechanical, emission point at vent 31
Single, mechanical, other emission point 32*
Double, mechanical, emission point at seal 33
Double, mechanical, emission point at vent 34
Double, mechanical, other emission point 35*
Single, packed, emission point at seal 36
Single, packed, emission point at vent 37
Single, packed, other emission point 38*
^Sealless pumps 39*
*Explain in comment field.
-------
TABLE A-l. DATA CODING CONVENTIONS (continued)
Columns
Coding
29,30 (cont'd)
Off-line
Pump
Seals
On-line
Compres-
sor
Seals
Source Code
Single, mechanical, emission point at seal 40
Single, mechanical, emission point at vent 41
Single, mechanical, other emission point 42*
Double, mechanical, emission point at seal 43
Double, mechanical, emission point at vent 44
Double, mechanical, other emission point 45*
Single, packed, emission point at seal 46
Single, packed, emission point at vent 47
Single, packed, other emission point 48*
Sealless pumps 49*
"Single, mechanical, emission point at seal 50
Single, mechanical, emission point at vent 51
Single, mechanical, other emission point 52*
Double, mechanical, emission point at seal 53
Double, mechanical, emission point at vent 54
Double, mechanical, other emission point 55*
Single, packed, emission point at seal 56
Single, packed, emission point at vent 57
Single, packed, other emission point 58*
Sealless compressors 59
*Explain in the comment field.
-------
TABLE A-l. DATA CODING CONVENTIONS (continued)
Columns Coding
29,30 (cont'd)
Off-line
Compres-
sor
Seals
Source
'Single, mechanical, emission point at seal
Single, mechanical, emission point at vent
Single, mechanical, other emission point
Double, mechanical, emission point at seal
Double, mechanical, emission point at vent
Double, mechanical, other emission point
Single, packed, emission point at seal
Single, packed, emission point at vent
Single, packed, other emission point
Sealless compressors
Vacuum Breakers
Expansion Joints
Rupture Disks
Sight Glass Seals
31 Service Code -
Code
60
61
62*
63
64
65*
66
67
68*
69*
70
71
72
73
1 = Gas at Process Conditions
2 = Light Liquids (naphthas and .lighter with a vapor
pressure ^0.04 psi @ 20°C)
3 = Heavy Liquids (kerosene and less volatile liquids
with a vapor pressure < 0.04 psi @ 20°C)
32 - 35 Material Code - a unique sequential identification number
for each new process stream encountered. The code should be
explained on the "Material Coding Sheet" shown as Table A-2.
The stream description should include information about
specific components and their concentrations (i.e., de-
propanizer overhead - 80% propane, 11% propylene, 3% ethane,
6% isofautane).
*Explain in the comment field.
-------
TABLE A-l. DATA CODING CONVENTIONS (continued)
Columns Coding
36 Elevation Code -
0 = Below ground level (pits, etc.)
1 = Ground level
2 = ist platform above ground
3 = £ftd Platform above ground
etc.
37 Accessibility Code -
Blank = normal (easy) -accessibility
1 = accessible with a free standing ladder or a
minor amount of scaffolding
2 — accessible only with a crane, cherry picker,
or major scaffolding
3 = physically accessible, but not safe to
approach
4 = emission point inaccessible because it is hard
piped to a control device
5 = shrouds or other safety devices prevent access
to the seal area
? = Other codes may be assigned and documented in
the field
38 Soap Score Code -
0 = No detectable bubbling during the six second
observation period
1 = Zero to 1 cc total bubble volume in six seconds
2 = 1 cc to 10 cc per six seconds
3 = 10. cc to 100 cc per six seconds
4 = > 100 cc per six seconds, which is characterized
by bubbles popping before the 6 second period is up
and/or the soap solution being blown away from the
seal area
39 Orientation Code -
1 = Horizontal seal interface (vertical-mounted valve)
2 = Vertical seal interface (horizontal-mounted valve)
3 = Diagonal seal interface
4 = Rotating seal, no soap score possible
-------
TABLE A-l. DATA CODING CONVENTIONS (continued)
Columns Coding
40 - 79 Comments - Free form alpha-numeric field which can be used
to describe any significant information noted about the
source, such as:
VISIBLE LIQUID EMISSION,
VISIBLE VAPOR EMISSION,
HOT SOURCE, SOAP VAPORIZING,
COLD SOURCE, ICE FORMING,
' SEAL AREA VENTED TO FLARE,
SCREENED AT SEAL OIL VENT, etc.
-------
TABLE A-l. MATERIAL CODING SHEET
Contractor Name:
n
1 2
Chemical
DO NOT
CODE
I/
//
'»s»f'r:
.X*
15 I I 13
211 L K !
27
\ \
7,
*- '
! I7l I i
r't £?
51
f 7
$3
69
. 2
75
IZA/C4-
* 7
"'3
1 /I/I ! !
Oe ij
4i
, HZ C-7
15
21
/I?! ! !
f?0
33
i\7\ !
Lf~ 39
45_
51_
57_
63
62.
75
I
-------
A-2
SUMMARY OF SAMPLING DATA
-------
CORPOR AVION
TABLE A-2
SUMMARY Up SAMPLING DATA
TEXACOt PAKADIS
S°URCF !: p UELTA p T ******************* ***********i!*******
ID CFM U (IN HG) (IN HG) (DEG F) M NM M Nn
****** ***** *** ******* ******* ******* ********* ********* ********* *********
116
122
170
179
256
29]
294
314
317
323
324
328
329
330
332
1.51
1.92
1.98
1.77
1.97
2.02
2.00
2,03
1.99
1.H9
1.91
1.75
1.90
2. 00
l.fll
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
30.03
30,04
30. U3
30, UO
30,11
30.15
30.11
30.15
30.15
30.11
30.11
30.11
30.15
3 il . 1 5
30.15
2. HO
2.90
3.50
3.60
3.20
3.20
3.20
3.30
3.30
3.15
3.10
3.60
3.50
3.50
2.90
al
80
36
oO
69
70
69
'0
70
74
/3
67
57
56
58
651.0
liuu.o
634.0
124.0
221.0
125U.O
4150U.O
292U.O
2.0
1».0
lfa.0
254U.O
424.Q
11U.O
5.0
74,
.0
107. U
22,
,0
8.U
76.0
3<45.
1620.
190.
141.
6580,
402.
156000,
16700,
iaoo.
403,
0
U
U
U
U
0
U
U
U
U
15.0
lt>.0
441.0
12.0
12.0
261.0
6.
12.
2.
10.
10.
ti.
2.
2.
2.
0
0
0
0
0
0
0
0
0
6.0
6.0
14.0
2.0
7.0
9.0
4.0
7.0
9.0
3,0
3.0
-------
CORPORATION
TABLE A-2
SUMMARY OF SAMPLING UATA
TEXACOt PAKADIS
SOURCr F
in CFM
****** *****
333
334
335
337
339
340
342
347
340
349
351
368
369
301
414
1,
,«2
2.01
1,
,78
2.02
1.
1.
2.
I.
1.
1.
1.
2.
1.
2.
1.
95
90
19
07
83
91
94
03
99
05
97
0
***
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
P
(IN HG)
*******
30.11
30.15
30.11
30.11
30.11
30.11
30.15
30.15
30.15
30.15
30.15
30. lb
30.11
30.15
30.03
IJELTA P
UN HG>
*******
3.60
2.90
3.70
5.10
4.90
4.&0
4.00
2.70
2.90
2.90
3.20
3.10
3.10
2.90
3.10
- • ' • • i"'" i L« i r^Fiw )
T ******************* ******************
9
64
'3
/3
55
62
63
70
fo
70
bg
71
U2
b.O
4.0
29.0
739U.Q
316U.O
9R2U.O
883U.O
4.0
2.0
0.0
2.0
6^,0
2690U.O
24b.O
85U.O
1670,0
2230,0
4dlO.O
36000.U
B920.
41600,
242000.
3230,
53.
157.
15.
H.
4420.
11.
26.
0
0
0
0
0
U
0
0
0
0
0
5,0
1.0
6.0
21.0
21.0
21.0
2.0
3.0
2.0
3.0
2.0
62.0
7.0
79.0
7.0
26.0
*o.o
*fc>,0
70UO.O
70UO.O
70UQ.O
33.0
£0.0
53.0
1U6.0
3.0
10.0
40.0
10.0
4.0
-------
CORPORATION
TABLE A-2
SUMMARY UF SAMPLING DATA
TEXACO. PAKADIS
tT(PPMW) CA(HPMW)
SOURCr F P OELTrt P T ******************* ******************* y y S.G.
ID cFr-', U (IN HG) (IN HG) (DEC F) K NM M NM (ML) (WIN) (G/ML)
* * * * * * * * ******* ******* ******* ********* ********* ********* ********* **** ***** ******
415
543
554
627
694
700
703
711
802
U13
646
657
952
954
956
1.99
2.04
2.01
2.01
1.95
2.32
12.00
1.93
2.06
l.*5
2.00
2.02
I.t5
1.98
l.t>2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
30.03
30,03
30,03
30.03
30.03
3J.U5
3U.03
30, U3
30.10
30.10
30.06
30.0fc
30.11
30.11
30.14
3.10
2.50
3.60
3.60
2.60
3.40
2.70
3.50
3.70
3.30
5.00
5.20
1.80
1.40
1.10
83
66
67
66
65
6B
65
67
57
55
71
(1
72
82
Oj
19.
32.
It.
2,
o.
*•
2.
*.
/.
U.
1.
1.
361000.
48400.
25900.
0
0
0
0
o
o
0
o
0
0
0
0
0
0
0
7.
26.
15.
162.
b95.
3160.
375.
134.
828.
b47.
387.
/20.
4800.
2800,
3b30.
U
0
U
U
U
U
U
U
U
U
0
U
U
0
U
7
7
7
2
2
2
2
2
3
3
1
1
230
230
243
.0
.0
.0
.0
.0
.0
.0 •
.0
.0
.0
.0
.0
.0
.0
.0
4.0
4.0
4.0
3*.0
32.0
32.0
32.0
12.0
4.0
4*0
2.0
2.0
8.0
8.0
19.0
-------
CORPNDRMTI tWW
TABLE. A-Z
SUMMARY UP SAMPLING UATA
TEXACOi PAKADIS
LT(PPMW) CA(HPMW)
f P UEL'LTA P T ******************* ******************* y y s»G»
(ML) (WIN) (G/ML)
**** ***** ******
in
******
9.57
95 S
961
963
965
966
967
973
974
975
976
977
979
908
1U66
CFM
*****
1.53
1.5(1
l.«4
1.07
1.67
1.67
1 .62
1.80
i.oe
1.33
l.flfi
1.92
1.67
l.Mi
1.90
0
** *
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
(IM
***
30
30
30
30
30
30
30
30
30
30
30
30
30
30
30
HG)
* +• * *
.14
.14
.11
.11
.11
.11
.11
.11
.11
.11
.11
.11
,11
.11
.11
(IM HG)
*******
1
1
1
1
1
1
1
1
1
1
1
1
1
2
3
.80
.80
.20
.20
.20
.20
.40
.40
.00
.20
.30
.?o
.20
.50
.10
(PEG F) M
******* *********
84
88
M
(5
'2
71
72
l\
71
71
71
7]
72
67
74
7830U.O
1540U.O
574U.O
146QOU.O
69,0
444.0
17U.O
1320U.O
193.0
883U.O
11000U,Q
17400U.O
204U.O
4540.0
b.O
NM M
********* ********* *
11900.
4690.
920.
90.
13.
67.
12.
3000,
12.
7900,
2400.
20800,
1140,
287.
6680,
U
U
U
U
U
U
U
U
U
0
0
0
0
U
U
243
243
156
150
69
72
72
20
20
244
244
294
294
4
b
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
MM
*******
19.0
19.0
".o
6.0
a.o
8.0
o.o
7.0
7.0
Ob.O
05.0
15,0
lb.0
4.0
3,0
-------
CORPORATION
TABLE A-2
SUMMARY UF SAMPLING
TEXACOt PAKADIS
CT(PPMW) CA(HPMW)
SOURCF' F P ULLfA P T ******************* ******************* \j f
ID r.Fiv-! U (Ii\i HG) (IM H&) (Qt-G F) M NM M |\|l«l (ML) (MlN)
* + + ***• * * * + 1C * * * ******* ******* ******* ********* ********* ********* ********* **** ***** ******
1089
1091
1.092
1101
1332
1790
1797
1956
1959
1982
19^3
2031
2033
2065
2125
?.01
2.05
1.94
1.98
2.42
1.B9
1,92
1.93
1.94
1.95
1.07
1.84
1.75
1 . *>3
1.03
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
30
30
30
30
30
30
30
30
30
30
30
30
30
50
30
.03
.03
.03
.03
.06
.06
.06
.00
.00
.11
.11
.00
.00
.10
.10
2
2
2
2
5
6
5
3
3
3
3
2
1
5
5
.40
.70
.70
,4>0
.90
.10
.60
.20
.00
.20
,00
.60
.30
.70
.90
65
66
*6
b?
fc>0
69
70
68
66
72
66
60
60
60
61
202.0
3.0
3,0
4.0
1.0
1.0
2.0
3.0
4.0
0.0
36,0
13,0
3.0
fa.O
•3.0
14900
llfl
1280
2bOO
351
1210
160
72
75
5370
6660
2060
126
3170
2&200
.0
.0
.0
.0
.0
.«
.0
."
.0
."
.0
.0
.0
.0
.0
2
2
2
2
1
1
2
*
4
5
3
2
2
3
6
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
.0
10.0
10.0 . .
10.0
10.0 . .
9.0 , .
2.0 . .
*f.O
"3.0 , .
fc>3.0
20.0 . .
12.0
3.0 . .
3,0 . .
b.O
21.0 .
-------
CORPORATION
TABLE A-2
SUMMARY UF SAMPLING
TF.XACO, PAKADIS
souRCr f
in rFM
****** *****
?149 1.84
2173 1.83
2223 1.85
2229 i.P9
2'236 1,85
2241 i,«7
2290 1,00
229 P. 1,90
2303 1,80
2304 1,93
231b 1.88
2319 1.88
2442 1.79
2444 1.92
2454 1.85
U
**1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
P
(IN HG)
*******
30.10
30.10
30,00
3 0 , U o
30,00
30. UO
30.00
30,00
30,00
30.00
30,00
3 0 , U 0
3 0.00
30.00
3 0 . U 0
Ut'LTA P
-------
CORPORATION
TABLE A-2
SUMMARY UF SAMPLING DATA
TEXACO. PAKADIS
SQlJCr
D£LTA P
******************* *******************
,-
2456
2^62
2483
2'*93
2494
2501
2500
2509
2516
2520
2543
2547
2549
2550
2552
1.94
1.93
2.20
2.43
1.99
2. IP
1.92
1 . M9
2.411
2.40
2.54
2.52
2.4b
2.55
2.56
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
30,00
30.06
30,06
30.06
30.11
30.10
30.10
30.10
30. U6
30.06
30.06
30. U6
30.06
30.06
30.06
2.70
8.00
4.90
5.90
3.30
4.20
3,40
3.40
5.70
b.bO
6.60
5.90
fa. 10
6.30
6.10
71
55
72
58
2.0 109.0
52.0 7420,0
1.0
284.0
2.0 540,0
faO 19,0 5380,0
68
60
68
56
36
70
64
63
•>7
66
*.
6.
3.
•i.
2..
3.
i.
1.
4.
2.
0
0
0
0
0
0
0
0
0
c
13900.
15600.
1050.
2810.
312.
2020.
1200.
480,
27*0,
977.
0
0
U
u
u
0
u
u
u
u
2.0
3.0
1.0
2.0
19.0
2.0
4.0
3.0
3.0
2.0
3.0
1.0
1.0
4.0
2.0
1U9.0
20.0
±4.0
*fa.O
25.0
1*2.0
122.0
*2.0
-------
TABLE A-2
SUMMARY UF SAMPLING DATA
TEXACO, PAHADIS
*
****** ***»» ***
********* ******,*
2779
2.'f9
2.56
1.72
l.*9
1.91
1.97
1.90
1
1
1
1
1
1
1
30. U6
30. U6
3D.U6
30.10
30.10
30.10
30.10
6.20
o.QO
11.5
't.iO
4.00
6.30
5,90
blf
65
72
70
/?
67
69
1.0
1.0
2.0
70.0
156.0
0.0
H.O
1100, U
638. U
82.0
8490. U
10600.0
a?o,u
328.0
1.0
1.0
2.0
15.0
13.0
2.0
2.0
a.o
8.0
40.0
*o.o
14.0
7.0
149.0
-------
A-3
SUMMARY OF QA/QC DATA
-------
TABLE A-3.1. OVA CALIBRATION ERROR DETERMINATION
Instrument ID
Centurv Sv?rp""«; OVA-IDS
Serial Number: 2158
Run
No.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Mean Difference
Calibration Gas Data
Calibration a ~990 ppnv
Instrument Meter
Reading, ppm
8000
8200
3000
8000
8000
8400
8100
8500
8200
(2}
Calibration Error » Mean Difference^ ' „ ,„„
( ^Calibration
Calibration Gas Concentration " """
Gas Concentration - Instrument Reading
Difference^ '
ppm
-10
-210
-10
-10
-10
.-410
-110
-510
-210
-166
-2.1
-------
TABLE A-3.2. OVA RESPONSE TIME DETERMINATION
Instrument ID
Century Systems OVA-108
Serial Number: 2158
Calibration Sas Concentration
1-9-81
7990 ppmv
90S Response Time:
Without Dilution Probe
1, 5.8
2. 7.0
3. 5.5
Mean Response Time
Seconds
Seconds
Seconds
6.1
With Dilution Probe
7.1
9.5
7.0
Seconds 7-8
Seconds.
Seconds
Seconds
Seconds
-------
Unit #3
TABLE A-3.3. REPEAT SCREENING FORM
M
U
B
1*
0|2
Op
C'|?
0\2
Of2.
|
I
I
I
|
1
I
|
,*
'Zf?
•*n
•2P
2R
*n
1
1
1
1
1
1
1
1
u. i
Screening
Teas
\-fl-
M^
'^
>>l-
\P-
\
\
1
1
1
1
1
I
-J
Instrument
1
\
1
1
I
(B
.Process
Unit
QI
0,\
on
on
0,1
i
i
i
i
i
i
i
i
«i
u
S0
10 «8
.1 \2\b\1
1 1 lfc|5
i i\ni i
1 1 19i8i8
1-2151118)
I i i l
I I 1 I
II II
1 1 1 1
.Mil
1 I l l
1 1 1 1
MM
to
1.
ti a
M «H
0 14
15 w o
|/|0|6|0|0||'
\n?\eMQ>\i
IMO|0|0|0||
i i hioioio
1 l4|olo|o|o
1 1 1 II 1
1 1 1. 1 1 1
1 1 II 1 1
1 1 1 II 1
Mill)
II 1 1 1 1
1 M II 1
M M 1 1
£>OAP
' ft
22 : 3
4,4^
Z.I7.I?.
3L?«
a|3| a>
ll 1^
1 1
1 1
1 1
1 1
1 1
1 1
1 1
1 1
M
u u)
* > ^
M Ml •
as Jlfl *
|l \o\ofr\o\i
ihoioioioii
II lololololl
1 |&|S|0|0|0
II lololololl
II 1 II 1
1 1 1 II 1
1 II 1 II
II 1 1 1 1
M M M
1 1 1 1 1 1
1 M 1 1 1
M II 1 1
r
H
cs
32 S "3
« >
| l|o|o|o hi I
|l|0|tf |(?|<3| 1
hlololold i
ii|oioioion
1 IZlolololu
Mil i 1
1 1 1 1 1 1
1 1 1 1 1 1
111(11
Mill)
1 1 1 1 1 1
II 1 1 I 1
1 1 | M 1
Comments
-------
TABLE A-3.4
Accuracy Check AC 0217 2/17/81
Induced leak rate measured with the bubble meter
Pre-Run Post-Run
100 ml. in 6.4 sec. 6.6 sec,
6.5 6.5
6.5 6.6
6.6 6.4
Avg. = "i:0^ m1' = 15.4 ml/sec, or 923 ml/min
' C' of 8000 PPMV CH4 in air
T A A i i «. /QOQ ml \ / 60 min\ / 24 hr \ / 1 \ /g-mole\ / 16 g \ / kg \ /„ _.n\
Induced leak rate = (923 —7— I —r ) \—\ ) ( TF^n—T ( %0 -, -, } ^r~ I TTTTTn— (0.008)
\ min/ V hr / V day / \1000 ml/ \23.7 I/ \ g-mole/ ^.1000 g/ \. y
= 0.0072 kg/day of CH4
Sample Cart Data: D = 1.0
F = 1.615 CFM
P = 30.14 in. Hg.
AP = 0.6 in. Hg.
M % 29 Ib/mole
T = 60°F
Analytical Data: C = 77 PPMW
CA = 1 PPMW
E = 2.99 x 10-5 - P) M (CT-CA)
H 460 + T
_ o qo v in'* (1.0)(1.615)(30.14-0.6)(29)(77-1)
~ 2'99 x 10 460 + 60
= 0.0061 kg/day
Percent Error - "-"-0061 x 100 = 15.3%
Allowable Error = ± 20%
Sampling System OK
------- |